XWM8734

w Stereo Audio CODEC DESCRIPTION The WM8734 is a low power stereo CODEC ideal for MD, CD-RW machines and DAT recording applications. Stereo line inputs are provided, along with a mute function and programmable line level volume control. Stereo 24-bit multi-bit sigma delta ADCs and DACs are used with oversampling digital interpolation and decimation filters. Digital audio input word lengths from 16-32 bits and sampling rates from 8kHz to 96kHz are supported. Stereo audio line level outputs are provided along with antithump mute and power up/down circuitry. The device is controlled via a 2 or 3 wire serial interface. The interface provides access to all features including level controls, mutes, de-emphasis and power management facilities. The device is available in 20-lead SSOP or 28lead, 5x5mm QFN packages. WM8734 FEATURES Audio Performance − 90dB SNR (‘A’ weighted @ 48kHz) ADC − 100dB SNR (‘A’ weighted @ 48kHz) DAC − 2.7 – 3.6V Digital Supply Operation − 2.7 – 3.6V Analogue Supply Operation ADC and DAC Sampling Frequency: 8kHz – 96kHz Selectable ADC High Pass Filter 2 or 3-Wire MPU Serial Control Interface Programmable Audio Data Interface Modes − − − I S, Left, Right Justified or DSP 16/20/24/32 bit Word Lengths Master or Slave Clocking Mode 2 Stereo Audio Inputs and Outputs 20-lead SSOP or 5x5mm QFN Package Options APPLICATIONS CD and Minidisc Recorder MP3 Player / Recorder BLOCK DIAGRAM CSB SDIN MODE SCLK AVDD CONTROL INTERFACE VMID AGND W WM8734 ...